In the 1990s,astronomers found that distant Type Ia supernovae were ________ than they expected,leading them to conclude that ________.
A) brighter; the universe's expansion rate was decreasing with time
B) brighter; the universe was finite in size
C) fainter; the universe's expansion rate has been increasing with time
D) fainter; the universe was infinite in size

Question

Quizplus · Accepted Answer

Astronomers found that distant Type Ia supernovae were fainter than they expected, leading them to conclude that the universe's expansion rate has been increasing with time. This discovery led to the confirmation of the existence of dark energy, which is thought to be driving the acceleration of the universe's expansion.

In the 1990s,astronomers Found That Distant Type Ia Supernovae Were